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scoray [572]
3 years ago
15

When

Mathematics
1 answer:
stealth61 [152]3 years ago
3 0

x³ + ax² + 5x + 3. x + 2 = 0

x = -2

(-2)³ + a(-2)² + 5(-2) + 3 = 0

-8 + 4a - 10 + 3 = 0

4a - 15 = 0

4a = 15

a = 15/4

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The cost to rent a construction crane is $1200 per day plus $150 per oh use. Your budget for one-day crane rental is a most $360
Komok [63]
1200 + 150 = 1350 (if one day and one use)

Budget is 3600

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Explanation:

Budget is 3600 and 1200 + 150 (16) = 3600
6 0
3 years ago
1.2x + 3 =4x + 2
Dmitry_Shevchenko [17]
1. 2x+3=4x+2
  ⇒ 4x-2x=3-2
2x=1
x=1/2
There is one solution.

2. 18p-10p=5+6/2
8p=5+3
8p=8
p=8:8
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3. 6a/3=2a
2a-a= -2 -3
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4. 5+r-2=9,
 5-2+r=9
3+r=9
r=9 - 3
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5. -0,9 m= 9
     m= - 10

6. -2 (x+1/4)=5-1=4
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     x= -2 - 1/4
     x= -8/4 - 1/4= - 9/4

7. 6f+4f= 6 + 12
    10 f = 18
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8. 7n - 3n= 16
    4n=16
    n=16:4
    n=4

9. 1/3m-5/6m= - 15 - 3
     2/6 m-5/6=-18
     - 3/6m=-18  ⇒ 1/2m=18
       m=2*18=36
     
7 0
3 years ago
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7 0
3 years ago
Which survey question will produce discrete data? Select all that apply.
just olya [345]

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8 0
3 years ago
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Car is traveling 40 mph how long will it take to go190mile
antiseptic1488 [7]

Answer:

3.5 HOURS

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3 0
4 years ago
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